盐酸苯肼-1,8-二羟基萘-3,6-二磺酸-氯酸钾反应体系用于测定玉米中的痕量钒鹽痠苯肼-1,8-二羥基萘-3,6-二磺痠-氯痠鉀反應體繫用于測定玉米中的痕量釩 염산분정-1,8-이간기내-3,6-이광산-록산갑반응체계용우측정옥미중적흔량범 Reaction system of phenylhydrazine hydrochloride 1,8-dihydroxynaphthalene-3,6-disulphonic acid-potassium chlorate to determine the trace amount of vanadium in corn